
- Cast entries
- 21
- Episodes
- 16
- Locations
- 3
- Food stops
- Not available for this drama
Synopsis
A concise overview of the premise, tone, and dramatic setup.
A lawyer with a disastrous ten-percent winning rate finds his life upended when he’s swept into a murder case and suddenly mistaken for the notorious genius con artist known as Big Mouse. Overnight, he’s forced to inhabit this dangerous alias just to stay alive and keep his family safe.
Now walking a razor’s edge between law and the criminal underworld, he sets out to unmask a sprawling conspiracy. His hunt leads him deep into the schemes of the privileged elite, whose true, ruthless nature he is determined to expose.
Source: TMDB
Filming locations
Places connected to scenes, checked against source links before they appear publicly.
- 01
National Sejong Arboretum
국립세종수목원세종특별자치시 수목원로 136The greenhouse at the National Sejong Arboretum was used as a filming location for the drama 'Big Mouth'.
Sejong National Arboretum's greenhouse is said to be a filming location for the drama Big Mouth.세종수목원의 온실이 드라마 빅마우스의 촬영지라고 한다.쥐라기가든 온실 가볼 만한 곳(feat. 빅마우스 촬영지) - 02
National Sejong Arboretum Four Seasons Exhibition Greenhouse
국립세종수목원 사계절전시온실136 Sumokwon-ro, Sejong-si세종특별자치시 수목원로 136The Four Seasons Exhibition Greenhouse at the National Sejong Arboretum is one of the filming locations for the popular drama Big Mouth.
The National Sejong Arboretum's Four Seasons Exhibition Greenhouse is a must-visit place in Sejong City. It's an indoor botanical garden and a filming location for Big Mouth, one of today's popular dramas.세종시 가볼만한곳으로 실내식물원이자 요즘 인기 드라마 중에 하나인 빅마우스 촬영지인 국립세종수목원 사계절전시온실이에요.가볼만한곳 세종 국립세종수목원 실내식물원 빅마우스 촬영지 - 03
Yecheon Stadium
예천 스타디움경북 예천군 예천읍 충효로 395It is known as a filming location for the drama Big Mouth.
Big Mouth's filming location is known to be Yecheon Stadium.빅마우스 촬영 장소는 예천 스타디움으로 알려져 있습니다.드라마 빅마우스 이종석 윤아... 시작? (ft. 촬영지) 1회+2회
More to explore
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Production
Broadcast details, runtime, language, and key production credits.
Studio Dragon
AStory
- Creators
- Jang Young-cheolJung Gyeong-sun
- Directors
- Oh Choong-hwan오충환Bae Hyun-jin배현진
- Writers
- Kim Ha-ram
Source: TMDB
Cast & characters
Key roles, performers, and character context for quick scanning.

A struggling lawyer with a meager ten-percent success rate, Park Changho is unexpectedly framed and forced to assume the identity of the infamous genius conman Big Mouse.

Naturally beautiful and bold, Go Miho was beloved by all before marriage. After marrying Park Chang-ho, she became a capable nurse with exceptional life skills.

Choi Doha is a former star prosecutor who now serves as the mayor of Gucheon City.

Jerry is a con man who appears in a special guest role.

Gong Jihoon is the president of Woojung Ilbo and leader of the NR Forum.
Hyeon Joohee현주희Ok Ja-yeon옥자연Hyeon Joohee is the director of Gucheon University Hospital and the wife of Doha.
Kim Soontae김순태Oh Eui-sik오의식Kim Soontae is a lawyer and a friend of Changho.
Jung Chaebong정채봉Kim Jeong-hyeon김정현Jung Chaebong is a director of the Chilbong Academy, a private educational foundation.
Han Jaeho한재호Lee Yoo-jun이유준Han Jaeho is the head of the surgery department at Gucheon University Hospital.
Lee Doogeun이두근Oh Ryoong오륭Lee Doogeun serves as an advisory lawyer for the NR Forum.
Cha Seungtae차승태Yoon Seok-hyun윤석현Cha Seungtae is the executive director of the O.C Group.
Seo Jaeyoung서재용Park Hoon박훈Seo Jaeyoung makes a special appearance as the chief of hematology-oncology at Gucheon University Hospital.
Ashley Kim에슐리 킴Kim Kyu-seon김규선Ashley Kim works as a curator and is married to Jihoon.
Choi Jungrak최중락Jang Hyuk-jin장혁진Choi Jungrak is a prosecutor at the Gucheon Prosecutor's Office.
Park Miyoung박미영Kim Sun-hoa김선화Park Miyoung is the head nurse at Gucheon Hospital.
Jang Heejoo장희주Park Se-hyun박세현Jang Heejoo is a nurse at Gucheon Hospital.
Source: TMDB
Some bios contain text adapted from the Korean Wikipedia, licensed under CC BY-SA 4.0. Adapted text is modified and is also licensed CC BY-SA 4.0.
Lead actors
Lead performer biographies and notable credits.

Lee Jong-sukas Park Changho
Lee Jong-suk (Korean: 이종석, born September 14, 1989) is a South Korean actor and model. He debuted in 2005 as a runway model, becoming the youngest male model ever to participate in Seoul Fashion Week. Lee's breakthrough role was in School 2013 (2012). He is also well known for his roles in I Can Hear Your Voice (2013), Doctor Stranger (2014), Pinocchio (2014), W (2016), While You Were Sleeping (2017), The Hymn of Death (2018) and Romance Is a Bonus Book (2019).

Yoonaas Go Miho
Im Yoon-ah (Hangul: 임윤아; born May 30, 1990), best known by her stage name Yoona, is a South Korean singer and actress. She is a lead dancer, sub-rapper, sub-vocal, and the visual in K-pop girl group, Girls' Generation, as well as a member of Girls' Generation second subunit Oh!GG, which went on to become one of the best-selling artists in South Korea and one of South Korea's most popular girl groups worldwide. Apart from her group's activities, Yoona has participated in various television dramas, notably You Are My Destiny (2008), which marked her career breakthrough and earned her the Best New Actress awards at the 23rd KBS Drama Awards and the 45th Baeksang Arts Awards. She has since achieved further public attention and acting acclaim with a variety of role-types in Love Rain (2012), Prime Minister & I (2013), The K2 (2016), and The King in Love (2017). Her film work includes Confidential Assignment (2017) and Exit (2019), both of which are among the highest-grossing films in South Korea, the latter being her first leading role. On May 30, 2019, Yoona celebrated her 29th birthday (30th in Korean age) with the release of her debut extended play A Walk to Remember, charting at number three on South Korea's Gaon Album Chart. The success of Yoona's music and acting careers have led her to various CF deals, notably long-term collaborator Innisfree, and have established her as a top idol-actress of Hallyu.


Kwak Dong-yeonas Jerry
Kwak Dong-yeon, is a South Korean actor and musician. He made his acting debut in the television series My Husband Got a Family in 2012 for which he received Best Young Actor Award at the Korea Drama Awards. Wikipedia

Yang Kyung-wonas Gong Jihoon
Yang Kyung-won is a South Korean actor and model. He is best known for his roles in Crash Landing on You, Arthdal Chronicles Part 1: The Children of Prophecy and Hi Bye, Mama!.
Source: TMDB
Where to watch
Availability is grouped by country and provider type.
Disney Plus
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Hulu
Streaming data via JustWatch through TMDB.
Episodes
Episode stills, air dates, runtimes, and summaries.
Ep 1Episode 12022-07-29 · 63 minChangho, who has no money and is about to lose his wife, receives a call from the mayor of Gucheon.
Ep 2Episode 22022-07-30 · 74 minChangho is charged with drug abuse and locked up in Gucheon Prison.
Ep 3Episode 32022-08-05 · 72 minChangho needs to maintain recognition as Big Mouse to protect Miho.
Ep 4Episode 42022-08-06 · 68 minGong Jihoon makes a bet with Changho to find out his true identity.
Ep 5Episode 52022-08-12 · 70 minJihoon approaches Miho to find Seo Jaeyoung's thesis. Does Miho know Changho's true identity?
Ep 6Episode 62022-08-13 · 66 minMiho joins the prison medical volunteer program to meet Changho.
Ep 7Episode 72022-08-19 · 71 minJaeho warns Changho to stop looking into Seo Jaeyoung's thesis. Miho is suddenly attacked.
Ep 8Episode 82022-08-20 · 73 minChangho is in a mental hospital. Will Changho be able to hide his identity in a state of confusion?
Ep 9Episode 92022-08-26 · 63 minChangho stands as an informant in Seo Jaeyoung's trial, and Jihoon and Jungrak search for Changho.
Ep 10Episode 102022-08-27 · 63 minChangho calls out Big Mouse, and an unexpected character turns up at the agreed time.
Ep 11Episode 112022-09-02 · 72 minChangho shifts the power dynamics in the prison to pressure Big Mouse. Doha plants a new warden.
Ep 12Episode 122022-09-03 · 73 minThe warden plans to use the prison riots to take out Changho and Miho.
Ep 13Episode 132022-09-09 · 64 minThe hot-plate restaurant is in ruins. The agitated Changho meets someone unexpected there.
Ep 14Episode 142022-09-10 · 64 minChangho makes a tempting offer to Chairman Kang. Doha conspires with Yoongab to get rid of Changho.
Ep 15Episode 152022-09-16 · 70 minChangho prepares for the full-fledged elections against Doha, but Miho's health is in trouble.
Ep 16Episode 162022-09-17 · 71 minThe TV debate begins, and the smoking gun that will bring down Choi Doha is at Miho's fingers.
Source: TMDB
Videos
Trailers, OST, interviews, making clips, reviews, and recommendations.
Trailers & teasers
OST
Interviews & making-of
Reviews & recommendations
Source: YouTube
Gallery
Posters, backdrops, and stills from the drama.
Source: TMDB













